Under the multi-phase compressional thrust structure setting in Chepaizi area, Junggar Basin, a large amount of fractures associated with local fault systems were formed within the Carboniferous volcanic rock. Using a comprehensive analysis of core, thin sections, image logs and seismic profiles data, a quantitative characterization and prediction of fault-related fracture development in Carboniferous of Chepaizi area was performed. The results show that the high angle shearing fractures and tensional fractures are the main types in Carboniferous.The fracture parameters, such as direction, dip angle, density, and opening width are closely correlated with the fault. Based on the derived fault-control fracture density function, the fault grades of the study area can be divided intoⅠ, II, andⅢ,with the effective control distancesas 5.5,3.0 and 0.9 km,respectively. A quantitative analysis of fault strength was also conducted, mainly using statistical and analytic methods to transform the regional fault information into the fracture information, resulting in a detailed description and a quantitative characterization of fault-related fracture development in the Carboniferous of Chepaizi area.